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EP 3 942 471 A1

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(43) Date of publication: 26.01.2022 Bulletin 2022/04 (21) Application number: 20760744.1 (22) Date of filing: 13.03.2020

(51) International Patent Classification (IPC):  G06K 19/07(2006.01) G11C 7/04(2006.01) G06F 12/00(2006.01) G06K 19/077(2006.01) G06F 11/30(2006.01) (52) Cooperative Patent Classification (CPC): G06F 11/3062; G11C 5/04; G06F 11/3409; G11C 16/26; Y02D 10/00; G06F 11/3058; G11C 7/04; G11C 16/0483; G06F 11/3034; G11C 16/30; G11C 16/10; G06K 19/07732 (86) International application number: PCT/IB2020/052274 (87) International publication number: WO 2020/188429 (24.09.2020 Gazette 2020/39)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 20.03.2019 JP 2019053326 03.06.2019 JP 2019103485 (71) Applicant: Kioxia Corporation Tokyo 108-0023 (JP)	(72) Inventors: FUJIMOTO, Akihisa Minato-ku, Tokyo 1080023 (JP) KONDO, Atsushi Minato-ku, Tokyo 1080023 (JP) SUDA, Hajime Minato-ku, Tokyo 1080023 (JP) (74) Representative: Hoffmann Eitle  Patent- und Rechtsanwälte PartmbB Arabellastraße 30 81925 München 81925 München (DE)